Power saw including an impact mechanism
US8857066B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 22, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Jul 24, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D51/16
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power saw includes an electric motor, an impact assembly, and a blade retaining assembly. The impact assembly is coupled to an output shaft and includes a hammer member and an anvil member. The blade retaining assembly is coupled to the impact assembly and includes a blade coupling configured to connect to a saw blade. The impact assembly is configured to operate in a first mode when a mechanical load on the blade retaining assembly is below a threshold value. The impact assembly is configured to operate in a second mode when the mechanical load on the blade retaining assembly is greater than or equal to the threshold value. The hammer member is maintained in a fixed position relative to the anvil member when the impact assembly operates in the first mode. The hammer member intermittently impacts the anvil member when the impact assembly operates in the second mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.